Flashcards in Unit 1: Notes 1 Deck (38)
what are the characteristics of life?
1. all living things have cells.
3. grow and develop
4. respond to their environment
5. obtain and use energy
6. contain genetic material
how did all living things respond to their environment?
by using a stimulus, which is something internal or extern all that causes a change in an organisms
how do all living things obtain and use energy?
by using metabolism, which is all the chemical reactions that happen in the body (break or build molecules)
__________ and ________ ALWAYS WORK TOGETHER
anatomy and physiology
what is anatomy?
describes structures of the body
-their scientific names
what is physiology
studies the function of each structure individually and in combination
what are the levels of organization?
Atoms, molecules, cells, tissues, organs, organ system, organism
what are atoms?
smallest functional units of matter
what are molecules?
Active chemicals and combinations of Atoms
what are cells
smallest unit of life
what is a tissue
groups of cells that work together
what are organs
two or more tissue types working together
what are organ systems
two or more organs working together
what is an organism
A single individual
name the organs of the integumentary system
skin, hair, sweats glands, nails
what are the functions of the integumentary system
protect against environmental hazards, regulate body temperature, provide sensory input
name the organs of the nervous system
Brain, spinal cord, peripheral nerves, sensory organs
name the functions of the nervous system
Direct immediate response to stimuli, coordinate other organ systems, provide and interpret sensory info
name the organs of the skeletal system
bones, cartilage, ligaments, bone marrow
name the functions of the skeletal
provide support and protection for other tissues, store calcium and other minerals, form blood cells
name the organs of the muscular system
skeletal muscle, associated tendons
name the functions of the muscular system
provide movement, provide protection and support for other tissue, generate heat
name the functions of the endocrine system
Controls body but not as fast as nervous system by releasing hormones
name the organs of the endocrine system
glands, pancreas, endocrine tissues
name the organs of the cardiovascular system
heart, blood vessels, blood
name the functions of the cardiovascular system
pump blood, give blood cells waters and nutrients, controls body temperature
name the organs of the immune system
spleen, and lymphatic vessels, lymph nodes
name the functions of the immune system
defend against infection and disease
name the organs of the respiratory system
nasal cavities, trachea, bronchi